Auxiliary gaseous-fuel mixer.



C. SCHLAYER.

AUXHLMRY GASEOUS FUEL MIXEFL APPLICATION mw MAr .1,1914.

1517,54@ Patented ffxpr. 11, 1916.l

bmw I t, Invientor:

mfg/L14( l D @Atty .CHARLES sc HLAYER, or miwYoaK, n. Y., assieivoa 'rd errantes w. meer, ornnw Koax, n. Y. l

i Tov all whom t may concern .i

. y .AUXILIAIRE GASEOUS-FUEL MIXER.

museen. i

Be itknown that I, 'CHARLES SoHiiAYER, a citizen of the UnitedStates, residing in 7 Ithe borough of Manhattan, .in the city,

`Ycounty, and State of lNew York, have in-I vented certai'nnew and useful Improve- 'ments in Auxiliary Gaseous-Fuel-Mixers, of

which the"following isa specification, referencebeing had therein to the accompanyingdrawings, which form a part thereof.

, My invention relates to an auxiliary gasel ous fuel mixer and more'particularly to an appliance .adaptedto be disposed4 ingthe path of the mixture flowing from the carbureter to the engine cylinder tofsecurega more thorough adinixture'of tlie.vaporized l. hydrocarbon and air,

of the explosive mixture.

` with the spray' nozzle throttled down to ,a

considerable extent. .In my experiments with a mixer of the type immediately above referred to, I'have discovered, however, that the intermittent actionof the engine impulses is such as to prevent uniformity in the action of such a device, or to bring the l ',-tures of construction and combination of device up to a miximum speed With suflicient rapidity to secure the best results.

By my present invention I a'menabled to produce an auxiliary. gaseous fuel mixer wherein the rotary. agitator will intercept substantially all of the explosive mixture flowing from the carbureter lto' the engine cylinder orv cylinders Without obstructing the manifold, the 'carbureter oitake port or the engine intake ports, in a manner to materially affect the action of the carbureter and at the Asame time, insure the lrotation of said agitator at substantially, its .maxi-, inumspeed Aduring substantially the entire intake or suction stroke of an engine cylinder. A mixer made in'accordance with my" invention is also so constructed as ,to avoid a possible displacement of the supplemental driving means for the agitator with thev two-fold result lthat the agitator itself -is held rigidly, and any globules of hydrocarbon passing adjacent the axis of thev agitator will belpi'ojected outwardly and with.- in the lrange of 'the operative portions of the agitator and radially of the pipe, through fold b, At c ljhave shown-.a oarbureter of 110.

Specification of Letters Patent.

the volume of the Aexplosive mixer, and against the sides of the pipe in a manner to thoroughlydisrupt the saine. l also unite 'the succeeding sections ofthe agitators in manner to hold Vthem firmly with relation to the supplemental vanes, thel connecting means `being so disposed as to assist materially in agitating the explosive mixture, thus contributing toward the eiiiciency of the mixer.

A device made in accordance with my invention may be and preferably is, so constructed as to form a slightly constricted Patented Apr. it, i.

Application led March 18, 1914. Serial No. 825,460.

lpassageway adjacentth'e intake of the 4mixera and extending to apoint of the agi- "tator at approximately the greatest diameter. thereof, thus bringing theA entire flow of gas within the operative range of the agi-4 tator, directing it upon ,the supplemental starting device and permitting it to. expand or change its direction of 'How while still vwithin operative Arange of a portion of theY By ya construction such as that immediately above referred to 'the' mixer is not only adapted` to be mounted inthe manifold adjacent to the carbureter but may be mounted `,directly inthe cylinder ports leading to the engine intakeV valves.

The invention.` consists in the -novel feaparts hereinafter set forth and described and more particularly pointed out in the claims hereto appended. f"

Referring to the drawings:

engine manifold with my mixer applied to the manifold at the carbureter and also at the intake port of eachy of the engine cylinders; 2 is a side elevation of a mixer embodying ,my invention; Fig. 3 is a detailed view of the .agitator and the supple- 'mental vanes carried thereby;

vertical section through the agitator'showing the supplemental van'es in elevation, and Fig. '5 is a plan view of the said vanesdetaclied from the agitator.

Like letters refer to like parts throughout the several views. Y v In the accompanying drawings the engine cylinders are indicated at 1, Q, 3 and 4, said cylinders respectively having an intake port (1,, 0:2, a3, L4 which intake portsv are in com- .munication with different leads of the inanivFigure 1"`is 7' a diagrammatic showing offafour-cyli/nder 'Fie'. .4 is af ordinary construction, the odtalie oi which in communication With the trunk oi" the inanifoldb. ln the drawings the manifold is broken away to disclose the improved mixer. inasmuch as each of the mixers shown in connection with the engine is substantially lilie every other, a description of but one of them will be entered into.

The mixer above referred. to comprises a cylindrical shell d having an annular flange ,e br means of which the mixer is supported with the shell d Within and in axial alinement with the duct through which the ex! plosive mixture is conveyed to the engine. The diameter of the shell i is preferably slightly less than that of the duct in which itis adapted to be supported and is of a length considerably less than the length of the shell of the agitator. Carried by the shell' d is the angular cross-bar f projecting from the shell cl in the'direction of theow of. the mixture. At the other end of the shell d is a cross-bar g, the said bars f-g being provided with suitable alined bearings for the shaft of the agitator'. Both of these bars .may be secured to the shell d in any desired manner, as by lmeans of ordinary screws, and movement of said bars prevented by soldering said bars to the said shell after they have been properly trued up With relation to each other.

Mounted in the bearings upon the shafts f-g is the agitator shaft It which shaft has lirmly'secured thereto, so as to bel rotatable therewith, the helical strand e, the helices of which,h are of gradually increased diameter' from adjacent opposite ends of said shaft to substantially the center of said helix. By

making the said agitator t ott a continuous strand of round Wire, retardation of the dow of the explosive mixture .therethrough is reduced to a minimum,.vvhile suc'ient resistance to said flow is offered to cause the rapid rotation of the agitator. The shaft k is preferably mounted by means ot ball-bearings in order to permitvthe shaft to turn freely and make the agitator sufficiently sensitive to be responsive to the slight energy exerted thereon by the Flow oi the gases. The helix z' at lts greatest diameter extends into fairly close juxtaposition to the shell d land the various graduated helices comprised in said agitatorare spaced apart suliiciently (axially of the shaft 7i) and are of lgradirated diameters, so as to prevent the direct How of the mixture therethrough While at the same time a'ord suliicient clearance between succeeding helicesto avoid any substant'ia-l retardation of the flow of the inixture While causing such a diversionof separate portions thereof, as to assistmaterially in securing a thorough adn'iixture oiE the component parts thereof.

l have found that a mixer einbodying an agitator such as that immediately above deseu scribed has high eiiiciency, but that by son of a tendency of the agitator not to come to speed instantly toivai'dthe initiation or' the suction stroke of an engine piston, that there is a very substantial loss of eiiiciency. To obviate this diiiicult'y, i provide in' conjunction withv said agitator, supplemental vane-s which will have the eiect oi causing the agitator to come to speed substantially siinuitanecnsly with the initial development oi' the suction the agitator resulting. troni the suction stroke of the engine piston; to maintain this speed or even to insure an acceleration from the initial speed during the continuance oi this suction stroke. By the use of suoli supplemental varies, l have found that 'the eilicienc oi the mixer may be almost doubled; which probably results Jfrom the increased speed of rotation oi the agitator, Awith a resultant more thorough commingling of the component parte of 'the mixture, and increase of. the percentage oi the mixture subjected to the actidn oi? the agitator during the suction 'stroke of an engine piston. lin the practice ot my invention the Asuppleinental vanos rei'ierred to coni. prise tour propeller blades y', j', jg, andy,

ot high pitch, .mounted to have rr'itationy withe the shaft .7i and `set 'at 9G? apart. These blades are mounted Within the helix e' and the edges tlieieoie are made to' contorni with said helix in a manner to prevent the spring ing of the different heiices ol2 said helix and at the same time to avoid interference or the lateral iiow of the'inixture through the interstices` between Ysucceeding helices. Preterably maire the edges ot the blades y' to jg angular forming a. series oi seats 'for difierent points of` the strand or the agitator i;

and hold saidstrand iiriniy upon the seats so formed by using the connecting stay vv it looped about each helix or the agitator andsecured in place thereon. 'llhese tie strands also assist in securing a more thor'- ougli agitation oit the mixture.- By the arrangement of the plates j to je shown and de-v scribed, a sufiicient resistance is otiered the mixture flowing through the. agitator to insure a q uiclz: starting oiE the rotary movement thereof and the rapid developmentv ci the maximum speed of the agitator. By the use of supplemental varies the maximum speed ci rotation or the agitator, over the old torni, is materially increased and consid ering the quick response ci the agitator to 'the 'initial tion/ing ont the gases a inrichhigher average'speed dni-fine each' suction stroke is insured; n p l The shell4 d being somewhat constricted as compared with the duct or in which it is inserted', the after,

passing through said shell, will have' a' tendn ency toy expand. .lin order to secure the advent ges of the aceeieratediioiv adjacent the agi. ator, and at the same time taire ade inname of this expansion of the mixture, at

vantage forward end of the agitator is proleast the jected beyondtheshell 'd and into that space in which the expansion ofthe mixture occurs. This construction permits' a. change in of the mixture the directionl of the flow while still within the operative range of the agitator and thus permits the application ot' the mixer in a relation adjacent an elbow or in an engine port.

In actual practice the agitator. upon the initiation of the engine suction stroke, is

instantly rotated with rapidly increased ve The arrangement of the helix ji,

locity.

wires 7c is such as to blades to js and stay insure this higher speed 'of rotation without i tion will project any globules of hydrocar- .bon, toward thewalls of theduct, and thus tend to disrupt the same and cause them to combine with the air passin through said duct in the form of hydrocar on spray. By

' valve to a point where the hydrocarbon, to a given engine speed, will that required reason of this action o the `agitator, I4 am f enabled to throttle 'down thev spraying consumption of be materially reduced from by an engine when not using the mixer. By actual practice, I- have demonstratedl that with a carbureter so set as to cause an engine to readily start when a mixer made in accordance with" my invention is used, the reni'ovalvo the mixer will lstall the engine,

its-being 'started from the carbureter unless the spraying: valve of the carbureter is adjusted to increasekthe yoll 'urne .of the hydrocarbon delivered thereby.

y tion, considered in its broader aspects,

by Letters Patent is:

I have also determined by actual tests-'that a rotary movement of Asaid mixer' equipped with supplementalyanes of a' higher pitch than the strands of the agitator as herein described will readily start with ,the spray nozzle throttled down to a point at /which the engine will not start witha mixer in which such supplemental I `vanes are omitted.

It is not my intention. to limit my tothe precise details of construction shown in the accompanying drawings, it being apparent willof lnecessity vary with manifolds of difi -ferent diametes or according to the design of the manifoldor of the engine in connection with which the mixer is use.

- Having described my invention, what I claim as new and desire to have protected l. An auxiliary gaseous fuel mixer emthe rate of flow of 'the shaft andy of whereby inven` y spaced away from, and

desired for movement bodying therein a cylindrical -shell provided with bearings at the opposite ends thereof, a rotatable shaft extendingaxially of said shell and mounted in said bearings, a helical agitator carried by vand rotatable with said shaft, the helicesv of said agitator being spaced away from' and apart axially of said shaft and of different diameters, and supplemental vanes of a diiferent pitch said helices mounted upon said shaft within said agitator whereby the initial dow of the gaseous mixture will cause a substantially instantaneous lrotary movement oi shaft.

2. An auxiliary gaseous fuel mixer eiuf bodying 'therein a cylindrical shell provided with bearings at the opposite ends thereof, a rotatable shaftv extending axially of, said ishell and mounted in said bearings, a helical agitator carried by and rotatable with said being.

shaft, the helices'of said agitator spaced away from and apart axially of said different diameters, and 'four propeller blades of high pitch mounted upon said shaft within said agitator whereby th'e initial flow of the gaseous mixture -will cause a substantially instantaneous r0- tary movement of said shaft. i

3. An. auxiliary lgaseous .shaft,fthe helices oi said agitator being Jfrom, and apart axially of,

spaced away said shaft and'oi different diameters, and four propeller blades. of high pitch mounted upon said shaft and extending substantially radially thereof, the" outer edges of each blade conforming to and extending into engagement with the helices of said agitator the initial iow of the gaseous mixture will cause a substantially instantaneous shaft.

l. An auxiliary gaseous fuel mixer Aembodying therein a cylindrical shell proilided with bearingsA at the opposite ends thereof, a rotatable shaft extending axially ofV said shell and mounted in 'said bearings, a helical agitator carried by and rotatablewith said,I shaft, the helices of said agitator `being shaft and of dilierent diameters, peller blades othigh pitch lmoimted upon said shaft and extending substantially radi- .ally thereof, the outer edgeso'f each vblade conforming to and extending into ,engagement with the helices of said agitator whereby the initial flow oi the gaseous mixture will cause a substantially instantaneousroof said shaft and stay wires helix and extending Yfrom adjacent helices whereby held against displacement secured to eachone helix to the said helices are said apart axiallyv of, said` our pro-p' from A A 'fuel mixer ein-i bodying therein a cylindrical shell providedv ibo With relation to said blades and agitating 'elements adjacent the shell are provided.

5. An auxiliary gaseous fuel mixer embodying therein a cylindrical shell proiYided .with bearings at the opposite ends thereof, a rotatable shaft extending axially of said shell and mounted in said bearings, a helical agitator carried by and rotatable with said shaft, the helices of said agitator being spaced away from, and-apart axially of, said shaft and of different diameters, four propeller blades of high pitch mounted upon said shaft and extending| substantially radially thereof, the outer edges of each blade being angular to form seats for the helices of said agitator whereby the linitial flow of the gaseous mixture will cause a substantially instantaneous rotary rmovement of said shaft and stay wires secured to each helix and extending from one helix ,to the adjacent helices whereby the said helices are held against displacement lwith relation tol said blades ,and agitatingelements adjacent the shell are provided.

(i. An auxiliary gaseous fuel mixer ein bodying therein a cylindrical shell provided with bearings at the opposite ends thereof, a rotatable shaft extending axially of said shell and mounted in said bearings, a helical agitator comprising a continuous strand of ,wire formed into a sequence of helices ofdifi'erent diameter carried by and rotatable with said shaft, the helices of said agitator i, trasse being spacedaway from, and apart axially of,` said shaft and four propeller blades of 35 high pitch mounted upon said shaft and extending substantially radially thereof, the outer edges of each blade conformingto and extending into engagement with the helices of said agitator whereby `the initial iiow of 40 the gaseous mixture will cause a substantially instantaneous rotary movement of said shaft.

7. An auxiliary gaseous fuel mixer em- "bodying therein a rotatable agitator comi5 prising a plurality of concentric elements arranged one within the other, the outer. element consisting of a continuous strand of helical-ly wound wir-@succeeding helices being spaced apart axially of said agitator, 50 and away from the axis thereof, and of dif- 'ferent diameters, whereby a gaseous mixture 

